Komatsu 830E-AC Shop Manual page 135

FIGURE 3-8. PROPER SEAL INSTALLATION
2. Use a 13 mm (1/2 in.) diameter brush to
lubricate the seals with lube/release agent
(XA2308).
3. Use a spray bottle to lubricate the tube ends
with the lube/release agent.
4. When installing tubes, start at one end and
work toward the center. After you reach the
center, move to the opposite end, and again
work toward the center. If any of the tubes are
difficult to install, do not force the tube. Remove
the tube and determine the problem. Possible
causes may be:
•adequate seal/tube lubrication
•improperly installed seal
•damaged seal or tube end
•tube angle excessive during installation and/or
tube not centered in seal.
Inspect the seals and tube ends for damage
before trying to reinstall a tube. Replace as
necessary.
C03035
5. Working from the front of the radiator (opposite
of fan side), install the bottom row of tubes
starting with the fan side row.
When installing the tubes, center the top of the
tube in the top seal while angling the tube only
as much as necessary. Twist the tube while
applying upward force. Push the tube into the
seal until enough clearance is available to
install the bottom end of the tube into the
bottom seal.
6. Center the bottom end of the tube in the bottom
seal. Push the tube downward until the formed
bead on the tube is seated inside the lock ring
groove in the seal. If necessary, use the
installation tool (VJ6567) to pull the tube
downward into the seal. The tool has a hooking
device on the end of one of the handles for
aiding in installation. Refer to Figure 3-9.
FIGURE 3-9. USING INSTALLATION TOOL TO
7. Ensure that all tube beads are seated in their
respective bottom seals. Align and straighten all
tubes during the installation of each row to allow
maximum air flow through the radiator.
8. Install tube stay ends. Install the felt air baffles
behind
completing tube installation.
Cooling System
INSTALL TUBE
the front and back rows while
C3-11